> When loading the page, physical memory consumption would still jump to almost 3 GB, because the images are still decoded. But it would soon drop down to a few hundred MB, as the decoded data for non-visible images was discarded, and stay there (with some minor variations) while scrolling around the page.

This is a great news. The application that uses the most memory on my machine is the web browser.

I wonder if this fix would make scrolling the page less smooth.